SparkFun will be closed Nov 26th and 27th for the Thanksgiving holiday. Orders placed after 2:00pm MT on the 25th will ship out Monday the 30th.

Member #526084

Member Since: March 1, 2014

Country: United States

  • I have two of these driven from an Arduino board via a TIP 102 darlington NPN transistor. They work fine except when the power is disconnected they still stay engaged - as if there is residual magnetism that the spring cannot overcome. If you tap the end they return to normal. Any idea how I can overcome this problem?


No public wish lists :(